# presentationCompactAdaptation(horizontal:vertical:) Specifies how to adapt a presentation to horizontally and vertically compact size classes. ``` nonisolated func presentationCompactAdaptation(horizontal horizontalAdaptation: PresentationAdaptation, vertical verticalAdaptation: PresentationAdaptation) -> some View ``` ## Parameters `horizontalAdaptation` The adaptation to use in a horizontally compact size class. `verticalAdaptation` The adaptation to use in a vertically compact size class. In a size class that is both horizontally and vertically compact, SwiftUI uses the `verticalAdaptation` value. ## Discussion Some presentations adapt their appearance depending on the context. For example, a popover presentation over a horizontally-compact view uses a sheet appearance by default. Use this modifier to indicate a custom adaptation preference. ``` struct ContentView: View { @State private var showInfo = false var body: some View { Button("View Info") { showInfo = true } .popover(isPresented: $showInfo) { InfoView() .presentationCompactAdaptation( horizontal: .popover, vertical: .sheet) } } } ``` If you want to specify the same adaptation for both dimensions, use the [`presentationCompactAdaptation(_:)`](/documentation/SwiftUI/View/presentationCompactAdaptation(_:)) method instead. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)